Answer:
   a = (v₃₂ - v₂₁) / (t₃₂ -t₂₁)
Explanation:
This is an exercise of average speed, which is defined with the variation of the distance in the unit of time
          v = (y₃ - y₂) / (t₃-t₂)
the midpoint of a magnitude is the sum of the magnitude between 2
          t_mid = (t₂ + t₃) / 2
the same reasoning is used for the mean acceleration
          a = (v_f - v₀) / (t_f - t₀)
    
in our case
         a = (v₃₂ - v₂₁) / (t₃₂ -t₂₁)
 
        
             
        
        
        
Answer:
Carbon - 14 Isotope
Explanation:
Carbon - 14 is an unstable and weak radioactive carbon isotope that is used to determine the age of an organic matter (i.e Carbon Dating).
 
        
                    
             
        
        
        
Because it is near the ocean and the winds make it easier to pass